On Thu 11-04-19 19:59:51, Yafang Shao wrote: > The current item 'pgscan' is for pages in the memcg, > which indicates how many pages owned by this memcg are scanned. > While these pages may not scanned by the taskes in this memcg, even for > PGSCAN_DIRECT. > > Sometimes we need an item to indicate whehter the tasks in this memcg > under memory pressure or not. > So this new item allocstall is added into memory.stat. We do have memcg events for that purpose and those can even tell whether the pressure is a result of high or hard limit. Why is this not sufficient? > Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> -- Michal Hocko SUSE Labs
